My last comment on MEMS performance.

One piece price from Mouser 1.80 Euro.

Complete data sheet here with graphs...

https://www.mouser.se/ProductDetail/Infineon/IM69D130V01XTSA1/?qs=%2fha2pyFaduj4xwaVFOJc2igDZAeL7qWZE4cyVm2vU0DkFu5Rl9gaWnMlZsUg39Pw&utm_source=octopart&utm_medium=aggregator&utm_campaign=726-IM69D130V01XTSA1&utm_content=Infineon

On Sat, 18 Aug 2018 19:08 Stefan Schreiber, <st...@mail.telepac.pt> wrote:

> Many thanks, the information below was very helpful. (At least
> speaking for myself.)
>
> So I suspect that there are some performance issues involved.
> (However, the ZM-1 prototype specs  are certainly not that
> “amateurish” as some have suggested...)
>
> In the end the ZM-1 is not really on the market yet. All we have is
> some “anecdotical evidence” about the microphone’s prototype
> performance.
>
> Current product state:
> http://www.zylia.co/purchase.html
>
> (“ZYLIA is available in a pre-order”)
>
> Otherwise this microphone and its sw has been reviewed in many places.
>
> Just one link:
>
> https://www.soundonsound.com/reviews/zylia-zm-1
>
> A fair review (as cited) would take note of the microphone’s many uses
> and high flexibility.
>
> Best,
>
> Stefan Schreiber
>
> - - -
>
> Citando Chris Woolf <ch...@chriswoolf.co.uk>:
>
> > I think there is indeed some confusion in this discussion between
> > the signal-to-noise ratio of these mics, and dynamic range.
> >
> > The first is conventionally related to 1Pa/94dB SPL, and one then
> > needs to add in a Max SPL figure to get the dynamic range.
> >
> > We need both bits of information to understand the practicality of any
> mic.
> >
> > A noise floor of 24dBA (related to 1Pa) is about par for a small
> > personal electret mic. A dynamic range of >115dB is what one would
> > wish for in decent professional mics - that would be a noise floor
> > of 15dBA and a max SPL of >130dB (with a distortion figure of 3 or
> > 5%).
> >
> > Chris Woolf (ex editor of Microphone Data)
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